2557293 has 16 divisors (see below), whose sum is σ = 3701376. Its totient is φ = 1564160.

The previous prime is 2557279. The next prime is 2557297. The reversal of 2557293 is 3927552.

2557293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2557293 - 2⁴ = 2557277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480 + ... + 2702.

It is an arithmetic number, because the mean of its divisors is an integer number (231336).

2^2557293 is an apocalyptic number.

It is an amenable number.

2557293 is a deficient number, since it is larger than the sum of its proper divisors (1144083).

2557293 is a wasteful number, since it uses less digits than its factorization.

2557293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its digits is 18900, while the sum is 33.

The square root of 2557293 is about 1599.1538387535. The cubic root of 2557293 is about 136.7498409694.

It can be divided in two parts, 2557 and 293, that added together give a triangular number (2850 = T₇₅).

The spelling of 2557293 in words is "two million, five hundred fifty-seven thousand, two hundred ninety-three".